@import url(https://fonts.googleapis.com/css?family=Bree+Serif);

$duration: 300ms;
$timing-fn: ease;
$turquoise: #1abc9c;
$wet-asphalt: #34495e;
$midnight-blue: #2c3e50;
$clouds: #ecf0f1;

@keyframes in-top {
  from {
    transform: rotate3d(-1, 0, 0, 90deg);
  }
  to {
    transform: rotate3d(0, 0, 0, 0deg);
  }
}
@keyframes in-right {
  from {
    transform: rotate3d(0, -1, 0, 90deg);
  }
  to {
    transform: rotate3d(0, 0, 0, 0deg);
  }
}
@keyframes in-bottom {
  from {
    transform: rotate3d(1, 0, 0, 90deg);
  }
  to {
    transform: rotate3d(0, 0, 0, 0deg);
  }
}
@keyframes in-left {
  from {
    transform: rotate3d(0, 1, 0, 90deg);
  }
  to {
    transform: rotate3d(0, 0, 0, 0deg);
  }
}

@keyframes out-top {
  from {
    transform: rotate3d(0, 0, 0, 0deg);
  }
  to {
    transform: rotate3d(-1, 0, 0, 104deg);
  }
}
@keyframes out-right {
  from {
    transform: rotate3d(0, 0, 0, 0deg);
  }
  to {
    transform: rotate3d(0, -1, 0, 104deg);
  }
}
@keyframes out-bottom {
  from {
    transform: rotate3d(0, 0, 0, 0deg);
  }
  to {
    transform: rotate3d(1, 0, 0, 104deg);
  }
}
@keyframes out-left {
  from {
    transform: rotate3d(0, 0, 0, 0deg);
  }
  to {
    transform: rotate3d(0, 1, 0, 104deg);
  }
}

* {
  box-sizing: border-box;
}

body {
  background-color: #fff;
}
h1 {
  margin: 0 auto 5px;
  text-align: center;
}

.container {
  width: 840px;
  margin: 0 auto;
}

header {
  font-family: "Bree serif", serif;
  text-align: center;
  margin: 50px 0 25px;
  color: $wet-asphalt;
  p {
    margin: 0;
    color: transparentize($wet-asphalt, 0.6);
  }
}

.info {
  transform: rotate3d(1, 0, 0, 90deg);
  width: 100%;
  height: 100%;
  padding: 20px;
  position: absolute;
  top: 0;
  left: 0;
  border-radius: 4px;
  pointer-events: none;
  background-color: transparentize($turquoise, 0.1);
  h3 {
    font-family: "Bree Serif", serif;
    margin: 0;
    font-size: 16px;
    color: transparentize(#fff, 0.1);
  }
  p {
    font-size: 12px;
    line-height: 1.5;
    color: transparentize(#fff, 0.2);
  }
}

ul {
  padding: 0;
  margin: 0 0 50px;
  &::after {
    content: "";
    display: table;
    clear: both;
  }
}

li {
  position: relative;
  perspective: 400px;
  float: left;
  width: 200px;
  height: 200px;
  margin: 5px;
  padding: 0;
  list-style: none;
  a {
    display: inline-block;
    vertical-align: top;
    text-decoration: none;
    border-radius: 4px;
  }
  .normal {
    width: 100%;
    height: 100%;
    background-color: $clouds;
    color: transparentize($wet-asphalt, 0.4);
    text-align: center;
    font-size: 50px;
    line-height: 200px;
    box-shadow: inset 0 2px 20px darken($clouds, 2);
    svg {
      pointer-events: none;
      width: 50px;
      path {
        fill: transparentize($wet-asphalt, 0.8);
      }
    }
  }
}

.in-top {
  .info {
    transform-origin: 50% 0;
    animation: in-top $duration $timing-fn 0ms 1 forwards;
  }
}
.in-right {
  .info {
    transform-origin: 100% 0;
    animation: in-right $duration $timing-fn 0ms 1 forwards;
  }
}
.in-bottom {
  .info {
    transform-origin: 50% 100%;
    animation: in-bottom $duration $timing-fn 0ms 1 forwards;
  }
}
.in-left {
  .info {
    transform-origin: 0 0;
    animation: in-left $duration $timing-fn 0ms 1 forwards;
  }
}
.out-top {
  .info {
    transform-origin: 50% 0;
    animation: out-top $duration $timing-fn 0ms 1 forwards;
  }
}
.out-right {
  .info {
    transform-origin: 100% 0;
    animation: out-right $duration $timing-fn 0ms 1 forwards;
  }
}
.out-bottom {
  .info {
    transform-origin: 50% 100%;
    animation: out-bottom $duration $timing-fn 0ms 1 forwards;
  }
}
.out-left {
  .info {
    transform-origin: 0 0;
    animation: out-left $duration $timing-fn 0ms 1 forwards;
  }
}
